Experimenting with the new function proxy feature, I get a http 500 error with a proxy configured as follows:
Route template: /content/{*filename}
Backend URL: https://my-storage-account.blob.core.windows.net/public/{*filename}
Where the backend is just a public container on a blob storage account.
I've tried files with and without a file extension: favicon.ico and just a (text) file called test.
Requesting https://my-function-app.azurewebsites.net/content/favicon.ico yields a 404.
Requesting https://my-function-app.azurewebsites.net/content/test (the file without an extension called "test"), yields a http 500 error.
What am I doing wrong?
Note: I have the /api/ prefix removed by using the routePrefix option in host.json - which works fine for all my functions. Requesting the urls above with the addition of /api/ yields a 404 for both urls.
